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undergraduate thesis
Biološko pročišćavanje otpadnih voda grada Delnica
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. urn:nbn:hr:159:773484
Jakupak, Dora
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Water Technology

Institutional repository: Repository of the Faculty of Food Technology and Biotechnology

Cite this document

Jakupak, D. (2022). Biološko pročišćavanje otpadnih voda grada Delnica (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:773484

Jakupak, Dora. "Biološko pročišćavanje otpadnih voda grada Delnica." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. https://urn.nsk.hr/urn:nbn:hr:159:773484

Jakupak, Dora. "Biološko pročišćavanje otpadnih voda grada Delnica." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. https://urn.nsk.hr/urn:nbn:hr:159:773484

Jakupak, D. (2022). 'Biološko pročišćavanje otpadnih voda grada Delnica', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 01 December 2024, https://urn.nsk.hr/urn:nbn:hr:159:773484

Jakupak D. Biološko pročišćavanje otpadnih voda grada Delnica [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2022 [cited 2024 December 01] Available at: https://urn.nsk.hr/urn:nbn:hr:159:773484

D. Jakupak, "Biološko pročišćavanje otpadnih voda grada Delnica", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:159:773484

Metadata
TitleBiološko pročišćavanje otpadnih voda grada Delnica
Title (english)Biological wastewater treatment of the city of Delnice
AuthorDora Jakupak
MentorJosip Ćurko (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for Water Technology)
Zagreb
Defense date and country2022-06-29, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Uređaj za pročišćavanje otpadnih voda (UPOV) Delnice je uređaj II. stupnja pročišćavanja koji radi na principu biološke obrade otpadne vode u sekvencijalnim šaržnim reaktorima (SBR) s istovremenom aerobnom stabilizacijom mulja. Kako bi se provjerila uspješnost rada uređaja, u ovom radu analizirani su fizikalno-kemijski parametri na ulazu i izlazu UPOV-a: kemijska po-trošnja kisika (KPK), biokemijska potrošnja kisika (BPK5), suspendirane tvari, ukupni dušik i ukupni fosfor. Influent je okarakteriziran omjerima parametara te je izračunato prosječno se-zonsko opterećenje UPOV-a koje je najveće u ljeti zbog povećanog turizma. Izlazne vrijednosti KPK, BPK5 i suspendiranih tvari su ispod MDK što ukazuje da je biološko pročišćavanje otpadnih voda na UPOV-u vrlo učinkovito. Uređaj uspješno uklanja dušik i fosfor te je obra-đena voda dobre kakvoće za ispust u Delnički potok. Omjeri parametara pokazuju kako otpa-dna voda ima visoku biorazgradivost te bi mikroorganizmi u SBR bazenu trebali imati dovoljan izvor ugljika i hrane za uklanjanje dušika i fosfora.
Abstract (english)
The Delnice wastewater treatment plant (WWTP) operates on the principle of biological wastewater treatment in sequential batch reactors (SBR) with simultaneous aerobic sludge sta-bilization. In order to verify the efficiency of the plant, this work analyzes the physico-chemical parameters in the influent and effluent of the WWTP: chemical oxygen demand (COD), bio-chemical oxygen demand (BOD5), suspended solids, total nitrogen and total phosphorus. The influent was characterized based on the parameter ratios, and the average seasonal load of the WWTP was calculated. The ratios show that the highest load occurred in summer due to in-creased tourism. The baseline values of COD, BOD5 and suspended solids are below the limit, indicating that the biological wastewater treatment in the WWTP is very efficient. The plant successfully removes nitrogen and phosphorus. The treated water is of good quality for dis-charge into the Delnički stream. The ratios of the parameters show that the wastewater has a high biodegradability and the microorganisms in the SBR have a sufficient carbon source to remove nitrogen and phosphorus.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:773484
Study programmeTitle: Food Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2022-10-05 12:22:04